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Integrain flux depinning and critical currents in Y1Ba2Cu3O7-δ ceramics and composites

✍ Scribed by M.A.-K. Mohamed; I. Isaac; J. Jung

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
142 KB
Volume
194-196
Category
Article
ISSN
0921-4526

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✦ Synopsis

The intergrain (Josephson) flux depinning and the corresponding changes in the intergrain (Josephson) critical current magnitude and dissipation were measured, for the first time, in the high-T c granular superconductors. The experiments allowed the detection of the intergrain flux depinning without the influence of the intragrain flux and the simultaneous direct measurement of the intergrain critical current dissipation.

📜 SIMILAR VOLUMES

Critical currents in Y1Ba2Cu3O7−δ thin f
Critical currents in Y1Ba2Cu3O7−δ thin films containing screw dislocations
✍ H. Douwes; P.H. Kes; Ch. Gerber; J. Mannhart 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 561 KB

Flux pinning by screw dislocations and (oxygen) vacancies is considered in Y1Ba2Cu3OT\_6 thin films. Expressions for the corresponding elementary pinning forces are given and estimates concerning their strengths are made. It is supposed that the screw dislocations are the predominant pinning mechani